Denver to Seattle

DENSEA

Fly from Denver to Seattle starting at USD 89 with Frontier Airlines.Best fare available on Sep 13, 2026.Limited seats. Better plans. Book before it's gone.

Denver to Seattle cheapest flights this week

3 Sept
Frontier Airlines
07:15DEN
10:19SEA
DirectUSD 124VIEW DEAL
4 Sept
Frontier Airlines
07:15DEN
10:19SEA
DirectUSD 155VIEW DEAL
6 Sept
Alaska Airlines
08:22DEN
11:22SEA
DirectUSD 131VIEW DEAL
9 Sept
Frontier Airlines
22:44DEN
21:40SEA
1 StopUSD 141VIEW DEAL
10 Sept
Frontier Airlines
13:07DEN
16:08SEA
DirectUSD 136VIEW DEAL
10 Sept
Frontier Airlines
09:05DEN
21:40SEA
1 StopUSD 141VIEW DEAL
11 Sept
Frontier Airlines
13:10DEN
19:36SEA
1 StopUSD 130VIEW DEAL
12 Sept
Alaska Airlines
12:17DEN
15:15SEA
DirectUSD 135VIEW DEAL
13 Sept
Frontier Airlines
07:45DEN
10:51SEA
DirectUSD 89VIEW DEAL
14 Sept
Frontier Airlines
13:07DEN
16:08SEA
DirectUSD 116VIEW DEAL

Denver to Seattle monthly flight fare trend

Sep
from USD 89
Oct
from USD 91
Nov
from USD 143
Dec
from USD 171
Jan
from USD 159
Feb
No flights

Airport Details

Origin

Denver

Denver International Airport (DEN)

Denver, DEN
Zone

Denver

Elev

5431 ft

Destination

Seattle

Seattle–Tacoma International Airport (SEA)

Seattle, SEA
Zone

Los Angeles

Elev

433 ft

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